Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Accessory Organs01:31

Accessory Organs

69.2K
Accessory organs are those that participate in the digestion of food but do not come into direct contact with it like the mouth, stomach, or intestine do. Accessory organs secrete enzymes into the digestive tract to facilitate the breakdown of food.
69.2K
Accessory Structures of the Eye01:17

Accessory Structures of the Eye

1.5K
Optical perception, or vision, is an extraordinary sense dependent on converting light signals received via the ocular organs. These organs, known as eyes, are securely positioned within the bony cavities of the skull, called orbits. The orbits serve a dual purpose: a protective shield for the ocular globes and a stable attachment point for the soft ocular tissues. The eye's external protective mechanisms include the eyelids, which are edged with lashes that act as a barrier against foreign...
1.5K
Cytoskeletal Accessory Proteins01:13

Cytoskeletal Accessory Proteins

3.1K
The cytoskeleton is an essential cell component that plays several structural and functional roles. However, the filaments that make up the cytoskeleton cannot function independently and depend on the accessory or ancillary proteins to effectively carry out their function. Accessory proteins associate with cytoskeletal filaments and their monomers, aiding filament formation and function. They also help in the cross-communication among cytoskeletal filaments. Cytoskeletal accessory proteins are...
3.1K
Interactions Between Signaling Pathways01:19

Interactions Between Signaling Pathways

6.3K
Signaling cascades usually lack linearity. Multiple pathways interact and regulate one another, allowing cells to integrate and respond to diverse environmental stimuli.
Convergence and divergence, and cross-talk between signaling pathways
Two distinct signaling pathways can converge on a single functional unit, which may either be a single protein or a complex of proteins. The response is either functionally distinct or synergistic between the two pathways but different from the response...
6.3K
Mechanism of Breathing III: The Accessory Muscles01:21

Mechanism of Breathing III: The Accessory Muscles

2.3K
The Role of Accessory Muscles in the Respiratory System
The respiratory system is a complex network that relies on primary respiratory muscles like the diaphragm, but also involves accessory muscles to enhance lung expansion and airflow during both inhalation and exhalation.
Enhancing Inhalation with Accessory Muscles:
Accessory muscles such as the sternocleidomastoid, scalene, intercostal, and abdominal muscles are crucial when additional respiratory effort is required, such as during deep...
2.3K
Direct Motor Pathways01:11

Direct Motor Pathways

1.9K
The direct motor pathways, also known as the pyramidal tracts, are a group of neural pathways that originate in the brain and descend through the spinal cord. They control the voluntary movement of the body. There are two major direct motor pathways: the corticospinal and the corticobulbar tracts.
The corticospinal tract is responsible for the voluntary movement of the limbs and trunk. It originates in the cerebral cortex of the brain and descends through the cerebrum's internal capsule and...
1.9K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

The Circuit That Survived the Hurt and the One That Didn't!

Pacing and clinical electrophysiology : PACE·2026
Same author

AI in the EP lab - mapping, imaging, and signal interpretation.

Indian pacing and electrophysiology journal·2026
Same author

Transseptal access with an electrified guidewire and large pulsed field ablation sheath.

Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology·2026
Same author

Electrocardiographic Prediction of Multivessel Disease in ST-Elevation Myocardial Infarction: A Validation of Standard Criteria and Identification of Novel Patterns.

Indian heart journal·2026
Same author

Vestibular epilepsy mimicking recurrent falls: A diagnostic pitfall of incidental sinus pauses.

HeartRhythm case reports·2026
Same author

Sinus of Valsalva Aneurysm Complicated by Aortic Root Abscess and Thrombus in a Bicuspid Aortic Valve: The Role of Multimodality Imaging.

The Canadian journal of cardiology·2026
Same journal

Impact of recording technologies on cardiac electrogram morphology: implications for mapping and interpretation.

Indian pacing and electrophysiology journal·2026
Same journal

Meta-analysis of the safety of outpatient Sotalol initiation in clinical practice.

Indian pacing and electrophysiology journal·2026
Same journal

Helix-fixation atrial leadless pacing for rhythm-mediated cardiogenic shock after acute myocardial infarction.

Indian pacing and electrophysiology journal·2026
Same journal

PERMANENT LEFT VENTRICULAR PACING IN A PATIENT WITH POST-METALLIC TRICUSPID VALVE REPLACEMENT COMPLETE HEART BLOCK- A CASE REPORT.

Indian pacing and electrophysiology journal·2026
Same journal

Dual conduction in an atriofascicular pathway.

Indian pacing and electrophysiology journal·2026
Same journal

Intramural left ventricular posterior superior process premature ventricular complex ablation with intracardiac echocardiography.

Indian pacing and electrophysiology journal·2026
See all related articles

Related Experiment Video

Updated: Jun 29, 2025

A Web Tool for Generating High Quality Machine-readable Biological Pathways
08:01

A Web Tool for Generating High Quality Machine-readable Biological Pathways

Published on: February 8, 2017

17.6K

Crazy accessory pathway- going round the bend!

Abhinav B Anand1, Pratap J Nathani1, Yash Y Lokhandwala2

  • 1Department of Cardiology, Lokmanya Tilak Municipal General Hospital and Lokmanya Tilak Municipal Medical College, Mumbai, India.

Indian Pacing and Electrophysiology Journal
|April 8, 2024
PubMed
Summary
This summary is machine-generated.

A 15-year-old boy with preexcitation and palpitations underwent successful radiofrequency ablation after an initial failed procedure. ECG pattern break in lead V2 localized the accessory pathway to the summit region for successful treatment.

Keywords:
Coronary sinusEpicardial ablationWPW syndrome

More Related Videos

Functional Complementation Analysis FCA: A Laboratory Exercise Designed and Implemented to Supplement the Teaching of Biochemical Pathways
09:27

Functional Complementation Analysis FCA: A Laboratory Exercise Designed and Implemented to Supplement the Teaching of Biochemical Pathways

Published on: June 24, 2016

17.7K
A Pathway Association Study Tool for GWAS Analyses of Metabolic Pathway Information
05:01

A Pathway Association Study Tool for GWAS Analyses of Metabolic Pathway Information

Published on: July 1, 2020

3.3K

Related Experiment Videos

Last Updated: Jun 29, 2025

A Web Tool for Generating High Quality Machine-readable Biological Pathways
08:01

A Web Tool for Generating High Quality Machine-readable Biological Pathways

Published on: February 8, 2017

17.6K
Functional Complementation Analysis FCA: A Laboratory Exercise Designed and Implemented to Supplement the Teaching of Biochemical Pathways
09:27

Functional Complementation Analysis FCA: A Laboratory Exercise Designed and Implemented to Supplement the Teaching of Biochemical Pathways

Published on: June 24, 2016

17.7K
A Pathway Association Study Tool for GWAS Analyses of Metabolic Pathway Information
05:01

A Pathway Association Study Tool for GWAS Analyses of Metabolic Pathway Information

Published on: July 1, 2020

3.3K

Area of Science:

  • Cardiology
  • Electrophysiology
  • Medical Devices

Background:

  • Recurrent palpitations in adolescents can significantly impact quality of life.
  • Preexcitation syndromes necessitate accurate diagnosis and effective treatment.
  • Previous unsuccessful ablation procedures pose challenges for subsequent interventions.

Purpose of the Study:

  • To describe the successful radiofrequency ablation of a challenging accessory pathway.
  • To highlight the diagnostic utility of electrocardiogram (ECG) findings in localizing accessory pathways.
  • To demonstrate the efficacy of targeted ablation in patients with prior failed procedures.

Main Methods:

  • A 15-year-old male patient with manifest preexcitation and recurrent palpitations was evaluated.
  • Electrocardiogram (ECG) analysis was performed, noting a pattern break in lead V2.
  • Radiofrequency ablation targeting the localized accessory pathway was conducted.

Main Results:

  • The ECG findings successfully localized the accessory pathway to the summit region.
  • The radiofrequency ablation procedure achieved a successful outcome.
  • The patient's recurrent palpitations were resolved post-ablation.

Conclusions:

  • ECG pattern break analysis is a valuable tool for accessory pathway localization, especially in complex cases.
  • Successful ablation of accessory pathways is achievable even after prior unsuccessful attempts.
  • Radiofrequency ablation remains an effective treatment for preexcitation syndromes.